Oh dear no. Capitalism is a miracle for people who are on the winning side, of the equation, it's awful for people who are not and are mostly trapped on the wrong side of that divide. As environmental degradation encroaches, that latter group will gradually swallow more and more people.
It's not a matter of empathy vs rationality as you suggest, but of under what conditions empathic strategies are efficient and self-sustaining. You assume the world (including society) as objective and rewarding unempathic rationality, but many social relations are wholly arbitrary and are optimized to reward particular strategies.
Evidence from statistical mechanics points to the evolutionary stability of self-organizing decentralized peer-sensitive strategies.
You know, I was reading the other day about Jeff Bezos being worth $118 billion. What is so great about maximizing such a quantity? Jeff Bezos doesn't know what to do with his spare money besides spending it on rockets. Would be really be functionally 'poorer' if he woke up tomorrow to find himself worth 'only' $18 billion, and the other $100 billion evenly distributed across the population (everyone in the world better off by $14), the US population (everyone in the US better off by $300), or the population of Amazon employees (everyone better off by approximately $180,000).
Supposedly it's more 'efficient' for Jeff Bezos to be in charge of all this money, but Jeff Bezos' wealth depends to a large degree on his ability to keep labor prices just above those of other employers hiring from the same pool in any given market. You're maximizing the extraction of value from the combination of capital and labor, but in a parasitical fashion that leaves Jeff Bezos with an (almost) unimaginably vast surplus and many of his employees with no surplus at all. You might argue that such workers should increase their economic value so as to command a higher wage, but in reality most of them are already working near the envelope of their physical capacity while being too tired and time-poor to undertake independent or institutional study to significantly improve their earning potential.